body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
}

#chat-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: #f5f5f5;
    padding: 20px;
    border-radius: 10px;
}

#chat-input {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

#chat-messages {
    margin-top: 20px;
    height: 300px;
    overflow-y: auto;
    padding: 10px;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.message {
    margin-bottom: 10px;
}